Ling Yong, wong, C. A. Ng, M. J. K. Bashir, and S. L. Ng. “Development of Hybrid Polymeric Polyerthersulfone (PES) Membrane Incorporated With Powdered Activated Carbon (PAC) for Palm Oil Mill Effluent (POME) Treatment”. International Journal of Integrated Engineering, vol. 10, no. 2, May 2018, https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/2643.